So you have this file and you don’t know how to open it. The person who sent it to you doesn’t seem to know either, and your deadline is ticking nearer. What do you do? Head to Go2Convert.com.

The import feature in Numbers for iOS, iPadOS, and macOS can take data in the common comma-separated values (CSV) and tab-separated values (TSV) formats and parse that right into a spreadsheet’s ...